<?php
$data['image_sizes'] = array (
  0 => 
  array (
    0 => '100',
    1 => '100',
    2 => '1',
    3 => '0',
  ),
  1 => 
  array (
    0 => '200',
    1 => '999',
    2 => '0',
    3 => '0',
  ),
  2 => 
  array (
    0 => '468',
    1 => '468',
    2 => '0',
    3 => '1',
  ),
  3 => 
  array (
    0 => '160',
    1 => '160',
    2 => '0',
    3 => '0',
  ),
);

?>